• Korean Journal of Food Science and Technology
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• v.35 no.3
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• pp.503-509
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• 2003

For the development of the anti-obesity natural drug, the inhibitor of adipocyte differentiation was screened from Korean traditional medicinal plants. Phellodendri Cortex was selected as a candidate of adipocyte differentiation inhibitor. An inhibitory compound PC-4 was purified from the methanol (MeOH) extract of Phellodendri Cortex using silica gel and ODS RP-18 column chromatography and HPLC. PC-4 was obtained as yellow powder; UV ${\lambda}_{max}$ (MeOH): 230, 260, 340 and 430 nm. The chemical structure of PC-4 was determined as an isoquionoline alkaloid, berberine, on the basis of various NMR experiments including $^1H-\;and\;^{13}C-NMR$. The PC-4 inhibited the differentiation of preadipocyte NIH-3T3 L1 cells at a concentration of $1\;{\mu}g/mL$.

• The Korea Journal of Herbology
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• v.32 no.5
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• pp.57-63
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• 2017

Objectives : The aim of this study is to search Korean Medicine with the superior inhibitory effect of pancreatic lipase including a possibility as a well-matched sauce material with pork. Methods : We chose 5 samples which have the potent inhibitory effect of pancreatic lipase enzyme among 9 samples. 5 samples were Glycyrrhizae rhizoma, Cinnamomi cortex, Ganoderma lucidum, Syzygium aromaticum, and Schisandra chinensis. Animals were divided into eight groups (n=7). The experimental groups except for normal group were fed 60% high-fat diet. 5 samples were orally administered at a dose of 200 mg/kg body weight and orlistat were orally administrated at a dose of 60 mg/kg body weight for 7 days. Biochemical anaylses of 5 samples were executed based on lipid parameters such as triglyceride (TG) and total cholesterol (TC). Results : Korean Medicines with $IC_{50}$ of below $1mg/m{\ell}$ were Glycyrrhizae rhizoma, Cinnamomi cortex, Ganoderma lucidum, Syzygium aromaticum, and Schisandra chinensis. Body weight change of all drug-treated groups except Glycyrrhizae rhizoma reduced significantly during the experimental period. Orlistat treatment reduced significantly both TG and TC in serum. The significant emission of TG in fece showed in Cinnamomi cortex treatment, whereas Ganoderma lucidum and Syzygium aromaticum showed a tendency to increase without a significance. Besides, Ganoderma lucidum and Schisandra chinensis emitted significantly TC to fece. Conclusions : In conclusion, Cinnamomi cortex may exert anti-obesity effect by directly inhibiting pancreatic lipase, which would prevent the absorption of lipid from the small intestine. Accordingly, Cinnamomi cortex may suggest a high possibility as a well-matched sauce material with pork.